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Hi all Reassurance and layman's terms requested if poss... My parents' heating was staying on overnight when the timer was not calling for it. The boiler was checked under Worcester Bosch boiler cover and found to have a clean bill of health. The guy said he was pretty sure it was a faulty...

Hi - newbie here hoping someone can help with advice. We have a Worcester Bosch Greenstar condensing boiler with an unvented Ariston cylinder. Sometimes there is a loud vibrating/rumbling noise from the central system. It is intermittent but seems to be when the boiler is running at full...